UNDERHILL, VT (AP) - Maple syrup doesn't get that rich flavor and color in an instant. It's a long process from tree to bottle.

But an improved technology could keep maple sugarers from working late into the night boiling sap into syrup.

The new machine removes more water from sap, leaving it with higher sugar content. The concentrated sap takes half the time to boil into syrup.

"For commercial maple producers, time is money and energy is money. It all comes down to how efficient you can be to make syrup, and this is just the next big step to save time," said Timothy Perkins, director of the University of Vermont's Proctor Maple Research Center.

The center produced its first batch of syrup with a new machine last week. "It definitely processed syrup very, very fast," Perkins said.

Tubing carries sap from maple trees to the sugar house at the University of Vermont's Proctor Maple Research Center in Underhill, Vt. The center is using a new machine that removes more water from sap than older technology, saving maple syrup producers time and energy boiling sap into syrup.(Photo: Lisa Rathke/AP)

Most large maple operations already use the traditional reverse osmosis systems that have a membrane that separate water from sugar. The new reverse osmosis technology removes even more water.

Producing maple syrup is an old New England cottage industry based on tradition, so some maple sugarers are wondering if faster is actually better. They worry it could impact the quality.

"We're questioning it," said Eric Randall, president of the North American Maple Syrup Council. "We're looking to see that we're doing the right thing."

Perkins said the flavor of the syrup produced with the new machine is so far acceptable as the center continues to research the technology.

Parker Family Maple Farm, in West Chazee, New York, expects a new machine to arrive Wednesday that may double its syrup production. "We're anticipating making 300 gallons of syrup an hour" with the new machine, Michael Parker said.

Eric Miller, U.S. sales manager for Lapierre Equipment, checks a newly installed machine at the University of Vermont's Proctor Maple Research Center in Underhill, Vt.(Photo: Lisa Rathke/AP)

Dozens of producers in Vermont, New York, Maine and Wisconsin are now using the machines, which are made by a handful of companies. It's an investment of tens of thousands of dollars depending on the size of the maple operation and how much equipment is needed. Industry officials say the cost is about 15 to 20 percent higher than the cost of the current technology.

Parker said the time savings will be welcome. "There's only so many hours in a day and we're using all of them," he said.